Ethics is about making the best possible decisions concerning people, resources and the environment. Ethical choices diminish risk, advance positive results, increase trust, determine long term success and build reputations. Leadership is absolutely dependent on ethical choices. In this video, PMI President and CEO Mark A. Langley talks about the importance of ethics to the project management profession and PMI.

Variance analysis is the quantitative investigation of the difference between actual and planned behavior. This technique is used for determining the cause and degree of difference between the baseline and actual performance and to maintain control over a project.